HumansVsZombies.org:

We’re really excited to learn that the crew of the International Space Station has begun the first game of orbital Humans vs. Zombies! The joint Russian/American station crew has been playing the game for nearly 24 Earth-hours with a modified ruleset.

You can see the game page as is progresses live at http://ISS.hvzsource.com.

We can only imagine how the low gravity environment would affect game strategy, but it turns out that the dart blasters work better than they do on Earth.

For some more information, we spoke over Skype with Expedition 27 crew commander Dmitry Kondratyev about why they’re playing and how they adapted the rules for the station:

HvZ: How did you hear about Humans vs. Zombies, any why did you decide to play?

Dmitry Kondratyev: Several of us had heard about the game back home from the news, the internet, and it always seemed like something fun. We’re always looking for safe and contained ways to pass the time and have some fun together up here, and take advantage of the microgravity conditions of the station, so Humans vs. Zombies seemed like a natural fit for us. Catherine [flight engineer Catherine Coleman] really took the lead in organizing the game.

HvZ: How do you play?

D.K.: We use the normal Goucher rules, but we added a few twists. (No blowing zombies out of the airlock!)

HvZ: How did you get the socks, Nerf guns, etc. to play?

D.K.: There was a transfer shuttle that arrived Wednesday [Soyuz TMA-20] that brought us a bag with game supplies. Maybe the most expensive game of Humans vs. Zombies in history… also the most fun!